JavaScript download file code example

Example 1: javascript write to file and download

function download(filename, text) {
  var element = document.createElement('a');
  element.setAttribute('href', 'data:text/plain;charset=utf-8,' + encodeURIComponent(text));
  element.setAttribute('download', filename);

  element.style.display = 'none';
  document.body.appendChild(element);

  element.click();

  document.body.removeChild(element);
}

// Start file download.
download("hello.txt","This is the content of my file :)");

Example 2: javascript download file

browser.downloads.download({url: "https://example.org/image.png"})

Example 3: how to download file in python

import urllib.request

print('Beginning file download with urllib2...')

url = 'http://i3.ytimg.com/vi/J---aiyznGQ/mqdefault.jpg'
urllib.request.urlretrieve(url, '/Users/scott/Downloads/cat.jpg')

Example 4: download file javascript

function download(link) {
  var element = document.createElement('a');
  element.setAttribute('href', link);

  element.style.display = 'none';
  document.body.appendChild(element);

  element.click();

  document.body.removeChild(element);
}

Example 5: javascript download file

$('a#someID').attr({target: '_blank', 
                    href  : 'http://localhost/directory/file.pdf'});

Example 6: typescript create file and download

var fileContents = "Hello world!";
var filename = "hello.txt";
var filetype = "text/plain";

var a = document.createElement("a");
dataURI = "data:" + filetype +
    ";base64," + btoa(fileContents);
a.href = dataURI;
a['download'] = filename;
var e = document.createEvent("MouseEvents");
// Use of deprecated function to satisfy TypeScript.
e.initMouseEvent("click", true, false,
    document.defaultView, 0, 0, 0, 0, 0,
    false, false, false, false, 0, null);
a.dispatchEvent(e);
a.removeNode();